How does Acquia Search work?
Every five or ten minutes, our module finds all the content which has been recently updated or not yet indexed by Acquia Search. This content is then sent to our indexing servers in the Acquia Network where it is then disseminated to multiple searching servers. When your visitors search on your site or view content recommendations, a request is sent in the background to our search servers. They do the hard work, and pass the results back to our module on your site, and the module outputs the results. Note that this implies that there may be a slight delay between the time your content is created, and the time it appears in the index (and search results).